reuleaux



(No Model.) 2 Sheets-Sheet l.

J. REULEAUXS FURNACE.

No. 317,852. 'Pat e'nted May 12, 1885.

WITNESSES: INVENTOR w fwzfi ATTORNEYS (No Model.) 2 Sheets-Sheet. 2."

J. REULEAUX.

FURNACE.

No. 317,852. Patented May 12, 1885.

. WITNESSES: W WNVENTOR v M ATTORNEYS 4 UNITED STATES trio-n.

Parent J OSEF REULEAUX, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALFTO CHARLES AUGUST HOYER, OF SAME PLACE.

FURNACE.

SPECIPICATIQN forming part of Letters Patent No. 317,852, dated May 12,1885.

Application filed September 25, 1884.

To all whom it may concern:

Be it known that I, J osnr REULEAUX, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented certain 5 new anduseful Improvements in Puddling and Heating Furnaces; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

My invention has relation to furnaces for puddling and heating of thatclass employing r gas as a fuel. In this class it is usual and necessaryto heat the air by which the gas-flame is supplied, and it is ordinarilydone by taking the air in at the back and bottom of the furnace, leadingit forward to the front and then back under the melting-chamber to therear wall, where it commingles with the gas, and from thence passes tothe combustion and melting chambers.

My invention has for its object the provision 2 of a furnace wherein theair will be heated to a higher degree than in other known furnaces ofits class, and more perfect combustion of the gas, and consequenteconomizing of time and fuel accomplished.

My invention has for its further object the provision of means wherebythe flames from the combustion-chamber will be directed to and strikethe material in the melting-chamber just inside the door of suchchamber, and 5 thereby maintaining the metal at that point at a higherdegree of heat than elsewhere in the chamber, so as to compensate forthe cooling effect of the draft, which is set up when the door isopened.

These objects I accomplish by the peculiar construction, combination,and arrangement of parts hereinafter fully described, and illustrated inthe accompanying drawings, where- Figure 1 is a vertical longitudinalsection; Fig. 2, a vertical transverse section on the line 3 4 of Fig.1; and Fig. 3, a horizontal section on the line 1 2 of Fig. 1 of afurnace constructed according to my improved plan.

Referring to the drawings, A designates the (No model.)

[ melting-chamber, having an arched top,.A,

and metallic bottom A.

B designates the combustion-chamber,which is inclined in the directionof the meltingchamber A, and is formed with an arched top, B, extendingfrom the top A of the melt ing'chamber to the rear wall, 0, of thefurnace. I

B B designate the side walls of the com bustion-chamber, and O O theside walls of the furnace, which are set out at some distance from thewalls B B, so as to leave a clear space, I; b, on each side of thecombustionchamber, and the walls 0 (J arejoined by an arched top, 0,between which and the top of 6 5 the combustion-chamber is left a space,0.

B designates the bottom of the combustionchamber, extending fromthemelting-chamher A to a division-wall, D, between which latter and therear wall, 0, of the furnace is a wide space, E, which forms themiXing-cham' her, where the air and gas are brought together andmingled.

A horizontal grating, F, formed offire-brick or other suitable material,divides the mixingchamber E into two divisions, e c, the gasburner Gbeing located in the lower division,

6, and near the bottom thereof, and a similar grating, D, is formed inthe division-wall D. The spaces or openingsin the latter alternate 8) inposition with the spaces or openings in the horizontal grating F, sothat the currents of air (which emerge throughv D) will be interlardedwith the currents or jets of gas emerging through the spaces in F,thereby facilitating their instantaneous commingling.

H designates the bottom of the furnace, and I a false or supplementalbottom, arranged be tween the bottom H and the bottoms of the meltingand combustion chambers. 3

K designates the air-inlet, and L the flue which returns the air backbeneath the melting and combustion chambers to the mixing chamber E. Theair is not, however, permitted to pass uninterruptedly through the flueL, as at about the middle of the combustion-chamber is a wall, M, thatnot only completely cuts off the flue L, but extends up through thespaces 1) b and slightly into the spaces 0 on top of thecombustion-chamber. Ioo

Having described the arrangement of the flues, &c., I will now proceedto describe the means by which the flame from the combustion-chamber isdirected to the portion of the melting chamber where the draft from thedoor strikes the contents of the same.

As has already been described, the combustion-chamber slopes downwardlytoward the melting-chamber. In addition, the vertical Wall at the sideof the combustion-chamber farthest from the door slopes toward the doorfrom the rear wall, 0, forming a shoulder, a k, with the curved back ofthe melting-chamber, the opposite vertical wall of the combustionchamberbeing curved around toward the door (lettered N) on the line Z. Theoutlet from the melting-chamber to the stack is lettered O, and issituated forward of a line running longitudinally through the center ofthe furnace. The flames passing through the combustionchamber aredeflected forward by the sloping wall of the combustion-chamber, and thepo-.

sition of the outlet from the melting-chamber further aids in directingthe flames to the proximity of the door.

Operation: The gas being turned on and ignited, the air is drawn inthrough the flu cs K and around over the false bottom H, and be tween itand the bottoms of the melting and combustion chambers by way of flue Luntil it reaches the wall M, by which it is deflected up through thepassage 6 b on each side of combustion-chamber B, thence around throughspace 0 on top of the combustion chamber,

' downwardly through passage 1) b and into flue L again, and thencethrough the grating D to the mixing-chamber E, where it meets andmingles with the gas, the flames and products of combustion passing offthrough the combustion and melting chambers to the stack.

It will be observed that the air passes beneath the entire length of themelting-chamber and pursues a sinuous course completely around thecombustion-chamber, thereby assisting to prevent the burning out of thewalls of the same, and becoming heated to a very high degree beforemeeting the gas.

The peculiar arrangement of the gratings F and D'insures the entireandperfect mingling of the gas and air, and the peculiar form andarrangement of the combustion and heating chambers causes the flames tobe most strongly directed to that point needing the most heat- 1'. 8.,directly back of the door.

I am aware that it is not new to constructa furnace wherein air-fluesare provided which pass beneath the melting and combustion chambers,and, emerging beneath the latter, join the gas-chamber, where the airand gas are commingled; hence I do not claim the same, broadly.

Having described my invention, I claim- 1. In a puddling or heatingfurnace, the combination, with a melting-chamber and acombustion-chamber, of a horizontal air-flue passin g beneath themelting-chamber and the combustion-chamber, vertical flues on each sideof the latter, a vertical wall dividing said flues and having an openingon top of the combustion-chamber, whereby the air is caused to passbeneath the melting and combustion chambers, up on each side of thelatter, over the top of the same, down on each side, finally emergingbelow the end of said combustionchamber, substantially as described.

2. In a puddling or heating furnace, the

combination, with melting-chamber A, combustion-chamber B,mixing-chamber E, and gas-burner G, of air-flue K, false bottom I, flueL, passing between said false bottom and the chamber A, wall M,intersecting the flue L, passages b b and b b at the side of the com:bustion-chamber, space 0 at the top thereof, connecting the passages 12b with passages b b, and air-outlet D, all arranged and combinedsubstantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

J OSEF REULEAUX.

WVitnesses:

O. A. HOYER, ALVA A. MooRE.

